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C# Accessing Array Elements

Array elements are accessed using their index, which starts at 0. You can read or modify elements by specifying the index inside square brackets.

Key Topics

1. Accessing Elements

Example: Reading Array Elements

string[] fruits = { "Apple", "Banana", "Cherry" };

Console.WriteLine(fruits[0]);  // Outputs "Apple"
Console.WriteLine(fruits[1]);  // Outputs "Banana"

Output:

Apple
Banana

2. Modifying Elements

Example: Changing Array Elements

fruits[2] = "Orange";
Console.WriteLine(fruits[2]);  // Outputs "Orange"

Output:

Orange

3. Array Bounds

Attempting to access an index outside the bounds of the array will result in an IndexOutOfRangeException.

Example: Out-of-Bounds Access

// This will throw an exception
Console.WriteLine(fruits[3]);

Explanation: Since the fruits array has indices from 0 to 2, accessing fruits[3] is invalid and will cause an error.

Key Takeaways

  • Array indices start at 0.
  • You can access and modify elements using their index.
  • Be cautious of array bounds to avoid runtime exceptions.
  • Understanding how to access elements is crucial for manipulating arrays.
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